Closure device



May 18 1926. 1,585,562

' A. J. E. RYLANDER CLOSURE DEVICE Filed August 20, 1924 "mun";

nu l 12 TWIT' Uh canton 7 A.J:ZR yZander-,f

Patented May 18, 1926,

UNITED STATES PATENT OFFICE.

ANDERS JOI-IAN EMIL B YLANDER, 0F, STOGKHOLM, SWEDEN, ASSIGNOB TO LINIDSTEDT 80 HAMMAB AKTIEBOLAG, 0F STOCKHOLM, SWEDEN.

CLOSURE DEVICE.

Application filed. August 20, 1924. Serial No. 733,213.

This invention relates to improvements in closure devices, having for an ob ect to provide a novel and advantageous form of cap closure for closing the open tops, ends or other portions of receptacles, nozzles, or spouts, such device being adapted to have limited pivotal movement with respect to the article to be closed thereby and also during or at the end of such pivotal movement, to be retained in absolute alignment with the opening of the article in order that with release. the same will immediately return to full closed position.

It is also an object of the invention to provide a closure device employing spring means for effecting its automatic return to closed position upon release. hence, avoiding the necessity of manually closing the same; the spring means being connected to the closure cap in a novel yet simple manner and being housed within the article equipped with the closure.

Other objects of the invention will be in part obvious and in part pointed out here inafter. 1

In order that the invention and its mode of operation may be readilv understood by persons skilled in the art, I have in the accompanying illustrative drawings, and in the detailed following description based thereupon set out several possible embodiments of the same.

In these drawings Figure l is a vertical section through an oil cup equipped with the novel form of closure cap, such cap being shown in closed position; v

Figure 2 is a similar view wherein the cap is shown in an open position;

Figure 3 is a horizontal section taken on the line 33 of Figure 1 looking in the direction in which the arrows point;

Figure 4: is a vertical section taken on the line 44l of Figure 2 looking in the direction in which the arrows point; c

Figure 5 is a perspective view of the oil cup equipped with the novel closure cap, the latter being shown in open position;

Figure 6 is a side elevation of a slightly modified form of oil cup equipped with the novel closure cap; and,

Figure 7 is an elevation of the inner end of an oil cup equipped with the invention, showing a modified form or means for an choring the can engaging spring within the cup.

Having more particular reference to the drawings, in connection with which like characters of reference will designate corresponding parts throughout, I have shown for purposes of illustration, the improved closure cap employed in connection with a lubricating oil cup, although it' is, to be expressly understood that the range of usage of the invention is of an extremely wide character; the same being equally advantageous for'use in closing various other receptacles, and also the open ends or portions of nozzles or spouts, to-wit, the open ends of oil can spouts or nozzles, et cetera. In

the chosen embodiment and adaption of the invention, there is shown in the Figures 1 to 5 inclusive an approved form ofoil cup indicated for the purposes of convenience in its entirety by the numeral 1, said cup being of a cylindrical shell-like formation. having an open and swaged lower portion adapted to be engaged with a bearing or other device to receive lubricant therefrom, while the upper portion of the cup is slightly enlarged and formed with an open top. It is desirable, for various purposes and reasonsthat this open top of the oil cup be closed, as for example, to exclude dust, grit, or the like from the lubricant contained therein and to this end, I provide my improved closure cap, designating the same, in its entirety, by the'numeral 2. This closure cap 2 is of a configuration or shape corresponding to the cross sectional configuration or shape of the open upper portion of the oil cup 1 as is shown in theFigures a and 5, the same being constructed of suitable material, such as metal, fiber, or other sufficiently tough and wear-resisting matter. The marginal portion of the cap 2 is provided with a skirting flange 3,

which as will be noted, is tapered forwardly upon the opposite sides thereof, merging into a laterally extended beak or finger engaging piece at formed upon the forward side of the closure cap for obvious purposes. The rearward portion of this skirting flange 3 is cut away as indicated by the numeral 5, leaving but a short portion of the flange upon the rearward part of the closure cap for engagement over and with the adjacent upper portion of the oil cup 1 as indicated by the numeral 6. In this connection, it should be noted that while the depth of the rearward portion 6 of the skirting flange 3 is obviously not as great as that of other portions of such flange, the same is sufficient to bring about cap-like or overlapping engagement of the device with respect to the open upper portion of said o1l cup 1, thus positively closing the same and precluding thepassage of dust, grit, or similar foreign matter into the receptacle.

By reason of this cut away portion 5 of the skirting marginal flange 3, it will be understood that the closure cap 2 will be permitted to be raised or moved to full open position with respect to the open upper end of the oil cup 1 as is clearly shown in the Figures 2, 4 and 5, hence, permitting the engagement or introduction of an end of an oil can nozzle or spout into the receptacle or cup. It is furthermore important to note that with swinging of the closure cap 2 to its full open position, the opposite side portions of the skirting flange 3 will have portions ofthe same remaining in engagement with the adjacent portions of the outer sides of the receptacle or cup 1 and in consequence, lateral displacement of the closure cap 2 with respect to the open upper portion of the oil receptacle or cup 1 will be prevented.

With a view towards providing means for effecting automatic return of the closure cap 2 to full and absolute closed position with respect to the open upper end of the oil cup 1 and to normally yet yi'eldably retain such closure cap 2 in its closed position so explained, a contractile coiled spring 7 is arranged within the oil cup 1, as shown in the Figures 1 and 2; the lower end of this spring being looped or otherwise suitably connected to an anchoring pin 8 shown in the Figure 1 as being formed integral with the inner end of the oil cup and in the Figure 2 as being seated within diametrically ppposed recesses or pockets in the inner end of said oil cup, this latter adaption of the anchoring pin being indicated for the purpose of convenience by the numeral 8. The remaining or outer end of the coiled spring 7 is provided with an elongated shank portlon preferably bent upon itself in substantially U-shaped fashion as indicated at 9, the purpose of which will be presently described.

Secured to the under side of the closure cap 2 nearer to the rearward portion 6 of the skirting flange 3 is an arm 10 having an offset rearwardly extending portion 11 formed thereupon while a pocket 12 is provided for in the outer side of such arm and is adapted to loosely receive the basal portion of the U- shaped shank 9 therein, hence, effecting connection as between the closure cap 2 and the contractile coiled spring 7 in order that the latter will normally exert an inward pull up on the closure cap and therefore, will tend to yieldably retain the same in its closed position with respect to the open upper or outer end of the Oll cup 1. This arm 10 may be secured to the under side of the closure cap 2 in any approved fashion, although for purposes of convenience, I have herein shown the same as being secured in such position through the medium of rivets 13. At this point the utilit brought about by the novel formation of tie U-shaped shank 9 should be noted. Because of the formation of the U-shaped shank 9 upon the contractile coiled spring 7, and the engagement of the basal portion thereof throughout its length with the arm 10, it will be understood that an ex tremely stable connection as between such spring and the cap 2 will be afforded whereby the cap will not be subjected to an uneven pull from the coiled spring with placing of the latter under tension as when the cap is swung to its open position. To the contrary, an evenly applied stress will be had upon the cap 2 with swinging of the same to its open or partially open position, in that the tension applied thereto from the coil spring 7 will be evenly distributed throughout the width of the arm 10 engaged by the basal portion of the U-shaped shank 9. Thus, it will be understood that the coiled spring 7 will not serve to pull or effect movement of the cap 2 to a position such as will bring about its disalignment or partial disalignment from the open upper or outer end of the oil cup 1 and therefore, proper engagement of the cap over said open upper or outer end of the oil cup 1 will be ensured.

lVhile the arm 10 serves as a convenient and effectual means for anchoring the U-shaped portion of the contractile coiled spring 7 to the closure cap 2, its utility is two-fold. At this point, it is to be noted that the rearwardly disposed free end portion of the offset part 11 of said arm is formed with a straight edge terminating at the opposite corners, indicated by the numerals 14 and 15. With engagement of the closure cap over the upper or outer open end of the oil cup 1, it will be seen that a portion of said cup will be arranged intermediately of the portion 6 of the skirting flange and the straight edge portion of the off-set part 11 of the arm 10; the spaced corners 14 and 15 of said off-set part 11 being arranged adjacent and having slight contact with portions of the inner side of said upper or outer open end of the oil cup 1. Consequent upon this arrangement, it will be seen that when the beak or finger engaging portion 4 of the closure cap 2 is engaged and moved upwardly, the corner portions 14 and 15 of the off-set part 11 will engage with the adjacent portions of the oil cup 1, thereby effecting fulcruming of the part 11 at said points 14 and 15 and permit opposite corner portions l tand .15. of the tin g pivotal movement of the closure cap-2 with respective the open endoft hc oil cup 1. Ttlu s the olosure c'ap may he swung during its pivotal movementto that position shown in the Figures and 5.

The pivotal movement of? the closure cap 2 .to its open position will be .limited by reason or" engagement of the marginal portion, of the part 6 of the skirtingtlangefi with an adjaeent portion ot' the oil cup 1 and'also, by reason of engagement of the lotf setpart 11;o1 the arm with adjacent parts ofsaid :oil cup 1. Thus, displacement of the closure cap Q"during..suc'h-pivot al 'HLOVQD'IGHil of the same to an open.or partially open position. will be absolutely .prevented. Furthermore, it is to hefn'oted that by reason of the spaci ng o't the points of fulcrum of the oft-set parts 1 1 namely, the corners l t and 15, with respect to the, adi jaCen-t portion of theoil cup '1 any tendency ot l ater,al movement or side play of the closure cap 2 during opening ofthe same or when the same has reached thelimit otits' pivotal .movementwill be avoided. This,

7 taken together with [the accurate engagemerit otthe. opposite side portions ot the skirting flange 3.- with adjacentportions of the oil .cupfl. will serve as. apositive means for retaining the closure cap 2 in absolute alignmentfwiththe open upper or outer end ofthe .oil cup 1 and in consequence, with release oisuch cap it will immediately return under influence of [the contractile coiled. spring 7- to its caplike or overlap ping. engagement with such open endflot said oil cup 1, thereby positively closing the same. and providing, a] dust, dirt, on other same will be prevented.

foreign matter excluding. closure.

Because of thehearing engagement of the ofif-setpart llof the arm; 10 with jthe adj a-cent portion of the in ner side of the oil cup 1.; namely, atthelfulcrumi'ng points or corners 14; and 15,.it willbeauidefstoiadthat possibility of undesireddockingor catching" of the closure cap 2,,qand its retention'in open posltion, subsequently to release, of the It will he'turthermore notedthat the ar- I rangementot the'free, or rearward end: of" t the olf-setpart 11 is in ttqflfillQhGlQW the i plane innvhich the marginal,portioinof the int-he cup 1. During-such rotary movement of the cap- 2-w ithres-pectto "the open emd ofthe o'il cup'1,;displaoement 0t the-same will be prevented hy seasonot the engagement of the skirting flange 3'and 'the tree adjacent portions of such cup 1.

Inthe'Figure 7, I-have disclosed -a sl12ght 'ly: modified form of means for anchoring the inner or lower end'of the contractile coiled spring to =the-oorresponding end or portion of the oil-cup 1, forming or fixedly arranging upon "the intermediate portionot' the, anchor-ingdevice 8 opposed steps or ahutments it; between which the -coi-l looped low-er or-in-ner end otthespr-lig r 1s adapted to be engaged, as n idioated by the numeral 1-7. KVith this particular Ltorm of connection oranchorage, it-will he understood that 1 movement 03:"; ithe looped end 17 of the-spring along theanchoring device .fS will be -avoided,-and furthermore 1' ithe closure cap 2 will inc-retained normally in a. predetermined position with.= relationto the open'cnd portion of the oil cupd.

improved closu-recap may, of-course, be used in connect-ion with various'rtorms OI" oil cups and as exemplifying such an adaption, itwill-he seen-that a slightly modified term of oil cup is shown in the Figure 6 of the accompanyingdrawings, being indicated for convenience hereinby the numeral 1. "Furthermore; the closure device may be, as henelnloetore'stated suc- .cessiully and advantageously employed in connection with various other tor-msof devlces or articles,- such as t'hespouts-of Oll eans as arcover ztor closures-other than oil cups which are adapted to oe normally closed, ,et cetera. 'Shouldthe closure device be employed in connection withan article--Whose cross-sectional shape is. square or includes flattened side walls,"it' is tOybGdlIlch-ETStOOCl that the straight edge of the otl setportion.1l between the points 14 and l5-w ill-praeaically serve as the point of "fulcrum," bearing throughout its length upon an adjacent part of sucharticle ratherthan upons'aid pomts or corners 14 and 15.

' Manitestly, the construction shownis capahle of considerable motliiication and such modification as is within the scope-01"" my claims; I consider within the spiiritof my invention.

I claim:

1. 111 combination with an articlehaving an open portion, a closure cap for such open portion having a skirtedfiange thereon-, -the rearward portion of said skir ed flange being cut away to reduce its depth adjacent the rearward portion of said cap, an arm secured to the under side of said cap having its rearward end arranged in proximity to the cut-away portion of said flange and 79 :end of the "elf-set part 11 of the armdO with adapted to have fulcruming engagement with the adjacent intermediately arranged portion of the article, and spring means anchored within said article and connected to the cap.

2. In combination with an article having an open portion, a closure cap for such open portion, a finger engaging piece on the forward portion of the cap, said cap having a skirted marginally arranged flange thereon said flange being tapered and extending forwardly to form said finger engaging piece in front of the cap and continuous with said flange, the rearward portion of the skirted flange being cut away to reduce the depth thereof at the rearward portion of the closure/cap, an arm secured to the under side of the cap having one end arranged in proximity to the cut-away portion of said flange and adapted to have fulcruming engagement with the adjacent intermediately arranged portion of the article, and spring means anchored within said article and connected to the cap,

3. In combination with an article having an open portion, a closure. cap. for such open portion having a skirted flange thereon, the

rearward portion of said skirted flange be ing cut away, an arm secured to the under 7 side of the cap nearer to the rearward portion thereof and longitudinally aligned with said cut-away portion, said arm having an oltset rearwardly disposed free portion, the extremity of which is formed with a straight edge whereby to permit fulcruming of the opposite corners thereof upon the adjacent intermediately arranged portions of the article, at times, and spring means anchored within said article and connected to the cap.

4. In combination with an article having 7 an open portion, a closure cap for such open portion having a sk rted marginal flange thereon, the rearward portion of said flange bein cut awa whereb I to reduce the de 3th of the same adjacent the rearward portion of the cap, an arm secured to the under side of the cap nearer to therearward portion thereof and longitudinally aligned with said cut away portion, said arm having an offset free portion, the free extremity of which is formed with a straight or ge whereby to permit the opposite corners thereof to fulcrum upon the adjacent intermediately arranged portion of the article, at times, and spring means anchored within said article and connected to the cap.

5. In combination with an articlehaving an open portion, a closure cap for such open portion formed with a skirted marginal flange, the. forward portion of the cap having a laterally extending finger engaging piece thereon, the rearward portion of said skirted flange being cut away whereby to reduce its depth at a point adjacent the rearward portionvof the closure cap, an arm secured to the under side of the cap nearer to the rearward portion of the same, said arm being formed with an off-set free portion, the extremity of which is arranged in a plane below the plane in which the marginal portion of the rearward portion of said skirted flange is arranged and having its free oxtremity formed witha straighted e and lo cated directly adjacent the cut-away portion of said flange,the opposite corners of which are adapted, at times, to have fulcruming engagement with the adjacent intermediately arranged portions of the article, and spring means anchored within said article and connected to the cap.

6. In combination with an article having an open portion, a closure cap for such open portion having a skirted flange thereon, the rearward portion of said skirted flange being cut-away, an arm secured to the under side of the cap nearerrto the rearward portion thereof, said arm having an off-set rearwardiy disposed free portion positioned directly adjacent the cut-away portion of said flange, the extremity of which is adapted to have the opposite corners thereof fulcrumed, at times, upon the adjacent intermediately arranged portions ofthe article, spring means anchored within said article, and a U-shaped shank formed upon the free end'of such spring means having its basal portion straight and engaged through out its length with a portion of said arm.

7. In combination with an article having an open portion, a closure cap for such open portion, said closure cap being formed with a marginally disposed skirting flange, finger engaging means formed upon the forvzard portion of such cap and said skirting flange, theopposite portion of the skirting flange being cut away and curved along the marginal portions thereof to conform to rhe curvature of the adjacentportion of said article, and fulcruming means secured to the under side of said cap disposed longr tudinally of the same having the rearward end thereof positioned directly adjacent said cut away portion of the skirting flange,

In witnesswhereof I have hereunto set my hand;

ANDERS J OHAN EMIL RYLnNDER. 

